MCP6549-I/ST Microchip Technology, MCP6549-I/ST Datasheet - Page 17

• Manufacturer Part Number: MCP6549-I/ST
• Description: IC COMP OPENDRN 1.6V QUAD14TSSOP
• Manufacturer: Microchip Technology
• Type: General Purposer

Specifications of MCP6549-I/ST

• Output Type: CMOS, Open-Drain, Rail-to-Rail, TTL
• Package / Case: 14-TSSOP (0.173", 4.40mm Width)
• Number Of Elements: 4
• Voltage - Supply: 1.6 V ~ 5.5 V
• Mounting Type: Surface Mount
• Number Of Channels: 4 Channels
• Product: Analog Comparators
• Response Time: 4 us
• Offset Voltage (max): 7 mV
• Input Bias Current (max): 1 pA
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1.6 V
• Supply Current (max): 1 uA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Comparator Type: General Purpose
• No. Of Comparators: 4
• Ic Output Type: CMOS, MOS, Open-Collector / Drain, TTL
• Supply Current: 600nA
• Supply Voltage Range: 1.6V To 5.5V
• Rohs Compliant: Yes
• Output Compatibility: CMOS
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: MCP6549I/ST

4.9
An unused amplifier in a quad package (MCP6549)
should be configured as shown in
circuit prevents the output from toggling and causing
crosstalk. It uses the minimum number of components
and draws minimal current (see
Figure
FIGURE 4-8:
© 2007 Microchip Technology Inc.
2-18).
Unused Comparators
¼ MCP6549
–
+
Unused Comparators.
V
DD
Figure 2-15
Figure
4-8. This
and
MCP6546/6R/6U/7/8/9
4.10
4.10.1
Some applications require higher DC precision. An
easy way to solve this problem is to use an amplifier
(such as the MCP6041) to gain-up the input signal
before it reaches the comparator.
example of this approach.
FIGURE 4-9:
Comparator.
4.10.2
Figure 4-10
windowed comparator. The wired-OR connection
produces a high output (logic 1) when the input voltage
is between V
FIGURE 4-10:
V
V
IN
REF
V
V
V
RT
IN
RB
Typical Applications
R
1
PRECISE COMPARATOR
WINDOWED COMPARATOR
RB
shows one approach to designing a
MCP6041
and V
V
R
DD
V
2
RT
REF
Precise Inverting
Windowed Comparator.
1/2
MCP6547
(where V
1/2
MCP6547
MCP6546
Figure 4-9
RT
V
V
PU
DS21714F-page 17
DD
> V
R
PU
RB
V
).
PU
V
shows an
OUT
R
PU
V
OUT